Marvel would then slot three of them in front of the three Marvel movies coming out leading up to Guardians (almost in a Pixar/Pixar short kind of way), with the fourth one placed before Guardians itself.
Since then, though, Gunn has directed two Guardians movies, with a third on the way, helped oversee a Guardians of the Galaxy theme park ride (with a second on the way), and helmed an upcoming holiday special, not to mention always having input when the characters show up in movies like Avengers: Infinity War or Thor: Love and Thunder.